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path: root/drivers/base/arch_topology.c
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2017-08-28base: Convert to using %pOF instead of full_nameRob Herring
Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-17arch_topology: Get rid of cap_parsing_doneViresh Kumar
There is no need to check for cap_parsing_done flag anymore as !raw_capacity flag alone is enough for us. Remove the (now) useless flag cap_parsing_done. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Juri Lelli <juri.lelli@arm.com> Tested-by: Juri Lelli <juri.lelli@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-17arch_topology: Localize cap_parsing_failed to topology_parse_cpu_capacity()Viresh Kumar
cap_parsing_failed is only required in topology_parse_cpu_capacity() to know if we have already tried to allocate raw_capacity and failed, or if at least one of the cpu_node didn't had the required "capacity-dmips-mhz" property. All other users can use raw_capacity instead of cap_parsing_failed. Make sure we set raw_capacity to NULL after we free it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Juri Lelli <juri.lelli@arm.com> Tested-by: Juri Lelli <juri.lelli@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-17arch_topology: Change return type of topology_parse_cpu_capacity() to boolViresh Kumar
topology_parse_cpu_capacity() returns 1 on success and 0 on errors. Make it return bool instead of int as that suits the purpose better. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Juri Lelli <juri.lelli@arm.com> Tested-by: Juri Lelli <juri.lelli@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-17arch_topology: Convert switch block to if blockViresh Kumar
We only need to take care of one case here (CPUFREQ_NOTIFY) and there is no need to add an extra level of indentation to the case specific code by using a switch block. Use an if block instead. Also add some blank lines to make the code look better. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Juri Lelli <juri.lelli@arm.com> Tested-by: Juri Lelli <juri.lelli@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-17arch_topology: Don't break lines unnecessarilyViresh Kumar
There is no need of line break at few places, avoid them. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Juri Lelli <juri.lelli@arm.com> Tested-by: Juri Lelli <juri.lelli@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-03arm,arm64,drivers: add a prefix to drivers arch_topology interfacesJuri Lelli
Now that some functions that deal with arch topology information live under drivers, there is a clash of naming that might create confusion. Tidy things up by creating a topology namespace for interfaces used by arch code; achieve this by prepending a 'topology_' prefix to driver interfaces. Signed-off-by: Juri Lelli <juri.lelli@arm.com> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-03arm,arm64,drivers: move externs in a new header fileJuri Lelli
Create a new header file (include/linux/arch_topology.h) and put there declarations of interfaces used by arm, arm64 and drivers code. Signed-off-by: Juri Lelli <juri.lelli@arm.com> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-03arm,arm64,drivers: reduce scope of cap_parsing_failedJuri Lelli
Reduce the scope of cap_parsing_failed (making it static in drivers/base/arch_topology.c) by slightly changing {arm,arm64} DT parsing code. For arm checking for !cap_parsing_failed before calling normalize_ cpu_capacity() is superfluous, as returning an error from parse_ cpu_capacity() (above) means cap_from _dt is set to false. For arm64 we can simply check if raw_capacity points to something, which is not if capacity parsing has failed. Suggested-by: Morten Rasmussen <morten.rasmussen@arm.com> Signed-off-by: Juri Lelli <juri.lelli@arm.com> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-03arm, arm64: factorize common cpu capacity default codeJuri Lelli
arm and arm64 share lot of code relative to parsing CPU capacity information from DT, using that information for appropriate scaling and exposing a sysfs interface for chaging such values at runtime. Factorize such code in a common place (driver/base/arch_topology.c) in preparation for further additions. Suggested-by: Will Deacon <will.deacon@arm.com> Suggested-by: Mark Rutland <mark.rutland@arm.com> Suggested-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Juri Lelli <juri.lelli@arm.com> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>